Putra F, Mandala S, Pramudyo M. A Study of Feature Selection Method to Detect Coronary Heart Disease (CHD) on Photoplethysmography (PPG) Signals. bits [Internet]. 29Sep.2022 [cited 10Jun.2026];4(2):1018−1026. Available from: https://ejurnal.seminar-id.com/index.php/bits/article/view/2259